The light waves have that particular interference from question #1 because they are emitted _____.

I’m providing the remainder of your question for clarity,
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As lasers consist of stacking light waves that amplify into a larger wave due to CONSTRUCTIVE INTERFERENCE.
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Therefore, <span>light waves experience constructive interference
because they are emitted IN PHASE with one another.
This signifies they all reach the same spatial point with identical characteristics and their impacts do not negate each other; rather, they enhance each other’s intensity.</span>

Response;

- In phase

Clarification;

Constructive interference occurs when the peaks of two waves coincide (the two waves are in phase), resulting in an amplitude that equals the sum of their individual amplitudes.

This interference arises when waves meet in phase, meaning their oscillations at a specific location move in the same direction, causing the resultant amplitude at that point to be significantly larger than that of a single wave's amplitude.

Consequently, for two waves with identical amplitudes to interfere constructively, the resulting amplitude doubles the amplitude of one wave.